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    • 38. 发明授权
    • Utilizing a search scheme for screen content video coding
    • 利用屏幕内容视频编码的搜索方案
    • US09332271B2
    • 2016-05-03
    • US13435199
    • 2012-03-30
    • Sijia ChenKai LiWayne LiuSiping Tao
    • Sijia ChenKai LiWayne LiuSiping Tao
    • H04N7/32H04N19/557H04N19/56H04N19/533
    • H04N19/557H04N19/533H04N19/56
    • A method, a device and computer readable storage media facilitate providing screen content including a plurality of video frames that are displayed by a computing device. During coding of the screen content, a suitable predictor is found that is used to code pixel blocks from one or more frames. The suitable predictor is found by selecting a pixel block of a current frame, conducting a direction based search by comparing pixel blocks within a search window of a reference frame with the selected pixel block of the current frame to determine whether a match exists, and, in response to a determination that no sufficient match has been found, conducting a feature oriented search by comparing pixel blocks of the reference frame with the selected pixel block of the current frame to find a suitable match based upon a common feature.
    • 方法,设备和计算机可读存储介质便于提供包括由计算设备显示的多个视频帧的屏幕内容。 在屏幕内容的编码期间,发现用于从一个或多个帧编码像素块的合适的预测器。 通过选择当前帧的像素块,通过比较参考帧的搜索窗口内的像素块与当前帧的所选像素块来进行基于方向的搜索来确定是否存在匹配来找到合适的预测器, 响应于确定没有发现足够的匹配,通过将参考帧的像素块与当前帧的所选像素块进行比较来进行面向特征的搜索,以基于共同特征找到合适的匹配。